Corrugated metallic plate for railway cars



' 1,638,153 G. G. GlLPlN CORRUGATED METALLIC PLATE FOR RAILWAY CARS Aug. 9,1927.

Filed May 16, 1925 3 Sheets-Sheet 1 bocoocoooooou 5000000000 conocacoaoooo 0000: 000a Garth Ailw'ney Aug. 9,

G. e. GILPIN CORRUGATED METALLIC PLATE FOR RAILWAY CARS s Shets-Sheet 2 H m 22,5,Z222,22222,6,2, m

Filed May 16, 1925 'Inventar: Garth 0.62? Attorney :5 Sheets-Sheet 3 G. G. GlLPlN .n ..n W L M G w 5 M C 1 i 1 m L 5 m0 W Q E Z W r1... 7,} i m W 6 w y M ,u

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Filed May 16, 1925 CQRRUGATED METALLIC PLATE FOR RAILWAY. CARS Aug. 9, 1927.

L w 8 Q Patented Aug. 9, 1927.

UNITED STATES GARTH e. GILPIN, or mvnnsinn, ILLINOIS, ssmaca TO union METAL mowers COMPANY, or CHICAGO, ILLINOIS; A eortroRArroN or DE'nAwARE.

CORRUGATED METALLIC PLATE Eon RAILWAY Toms.

Application filed May 16, .1925. Serial 2K0. 30,177.

ing or bracing means to resist such stresses.

While efforts are made to block the lading inthe car, the shocks caused by the heavy locomotives, the emergency air brake and the classification hump tear the lading away" from its moorings and throw it against the endof the car, the lateral weaving of'tlie car throws it against the side of the car; and

the impact throws it against the bottom of the car. My invention is adaptable to several parts of a railway car such as side doors, side Walls, floor sheets (sloping or otherwise), hopper doors, roof sheets, etc., but .it is especially adaptable for use as the end wall of .a railway car and is also adaptable to box, gondola or other types of-cars.

One of the objects of the invention is to provide metallic parts of a railway car which have great strength to resist the torsional and weaving stresses which exist in a railway car when moving in service. These stresses are caused by the inertia of the roof and superstructure when the train is Sud.

den-l-y stopped; rough or uneven trackythe superelevation of the track on curves; the lateral inertia in rounding curves; eccentric thrust due to the lading being secured to one side of the car; the cars being cornered; the use of push pole pockets, etc. Such stresses rack anddistort the superstructure which decreases the life of the car, and also.

causes the car to leak grain, sand, and other such material. Furthermore, such stresses cause leaky roots and leaky and inoperative side and end doors.

The tendency of an all metal end wall to bulge is resist-ed partially by the corrugations stiffening members or whatever means have been provided to transmit such stresses to the side wall or frame members of the car. Such tendency is also resisted by the corner post of the. car acting as 'a vertical beam supported at its top and bottom and sustaining a horizontal load; in other words,

the bulging-of the end would pull the opposite corner posts toward each other. This bulging also tendsrto pull the end (or side) plate downwardly and the end (or side) still upwardly. Another object of the invention isto rein torcethe frame members against thrust perpendicular to their length by means forming a part of a corrugated or otherwise reinforced metallic end wall. Y

In the drawings: l

i 1 sh ws my ihventibn' ap ed to a bo can i Fig. 2' is a side elevation at Fig. l.

Fi 3' is a e io on 1' Fi Fisk 4 is a e tie n 5- of F g.-

5 is a detail of the lower plate shown i Fi - i v Fig. 6 is a section on line 6-6 of Fig. Fig. 7 is a section'on line 'Z7 of Fig. 5.

Fig. 8is a section on line 8-8 of Fig, 5. Fig. 9 is a section on line 9-.-9 of Fig. 5. F ig. 10shows a modified form of invent n- Fig. 1 1 is a side elevation of Fig. I0. Fig. 12 is a section on line 12- 12 of Fig. l O. V

Fig. 13 is a-section on line of Fig. 10. '1 I Fig. 14 is a detail of the lowerplate shown 'in y i F Fig. 15 is a section on line 15-715 of als I 4 Figfllfi is a section on line, of i 4 a i Fig. ,1 71is a section on line 1 7.l7 (of Fig.1l4. I I

Fig. 18 .is a sectionon line l8l8 of F 1 0- 7 Fig.1!) is a section on line 19- -19 of Fig .-10. y w

Fig. '20. is section on line 20 2O of Fig. 10.. Y

It has been proposed to press the central portion of a metallic platetor plates) so as to form a. "continuous web or flange sur-v rounding a panel and to reinforce this panel by horizontalcorrugations or other integral reinforcements-whichtraverse the panel and terminate adjacent the opposite portions of the web or flange. In such an arrangement the load upon the horizontal corrugations is transmittedt'o the continuous web or flange only through the'intermediate means of tie flat portion of the plate lying between the end of the-horizontal corrugations and con- I tinuous.web,.or flange; It has also been proposed topress the central portion of a metal,

plate (or plates) so as to'form aweb or flange (supposedly) surrounding a panel and to reinforce this panel by horizontal corrugations or other integral reinforcements which are the same depth as the web or flange where they merge into it. In such an arrangement the Web or flange as a beam is destroyed. In my construction the transverse corrugations destroyonly apart of the value of the web, leaving a remaining por tion which extends continuously around the panel to receive the stresses from the hori zontal corrugations and to function as a beam and a stiffener. Such stresses are transmitted directly to the remaining portion of the web.

The corner post of an ordinary box or gondola car performs two functions; first, as a compression member of the truss forming the side frame of the car, and, secondly, as a vertical beam receiving the loads from the several horizontal frame members of the end wall and transmitting them to the side wall vof the car. The end plate of a. car is the end member of the roof framing structure and the end sill is the end member of the underframe and as such performs similar functions to the corner post. Also the end plate and the end sill are horizontal beams receiving the loads from the end wall and transmitting them to the roof structure and underframe, respectively. Therefore, in the specification and in the claims forming a part thereof the term frame member means either the corner post, end plate, end sill, side plate, side sill or any other similar frame member.

In my construction the transverse corrugations receive the impact thrust of the shifting load and transmit themto the sur rounding corrugation which is preferably positioned adjacent the frame member or members. This surrounding corrugation may be designed to reinforce the existing frame member of a car or to cooperate with another part of the car to perform the functions of the frame member or may be designed to independently perform the functions of the frame member and thus constitute the frame member itself.

In my construction the central portion of the metallic plate 1 (or plates 1-2) is pressed to form a continuous corrugation 3 surrounding a panel t, which corrugation comprises an inner wall 56 and an outer wall 7-8 and is preferably positioned adjacent the outside edges of the plate or outside edges of thewall whether the wall is made of one or more plates;

The panel 4 is reinforced with corrugations 9 or integral ribs which traverse the panel and merge into a part of the opposite portions 55 of the inner wall of the continuous corrugation, leaving a remaining portion 10 of the inner wall which extends continuously and uninterruptedly on three (or preferably four) sides of the panel.

tion with the outer Wall 7 of the continuous corrugation forms a beam or a stiffener to prevent bulging in transmitting the load from the transverse corrugations to the car. The inner walls 5 and outer walls 7 of the vertical portion of the continuous corrugation are prevented from buckling or deflecting by being connected to the horizontal portions 6- 8 of the corrugations by the (preferably) radial portions ll-12 which thus form a continuous or unending corrugation. V The transverse corrugations may be made the same depth or a greater depth than the depression forming the continuous corrugation but the corrugations are of less depth than the walls 55 where they merge into it. The advantages'of a continuous web in combination with the corrugations of great "depth (and strength) may alsobe obtained by providing a series or plurality of shallow corrugations 13 adjacent the continuous web which merge into a lesser number of larger and deeper (therefore stronger) corrugations 14 adjacent the middleof the plate. (See Figs. 5-9.) These shallower and deeper corrugations may be so positioned and dimen ioned that the length of the center line of the metal of the shallower corrugations (see Fig. 8) is the same as the length of the center line of the metal of the deeper corrugations (see Fig. 6) which is a material manufacturing advantage, as it more evenly distributes the draw and stretch of the m'etal'due to pressing the corruga tions in the plate.

Figs. 1-9 inclusive show a construction wherein the surrounding continuous corrugation is positioned adjacent to (and preferably parallel to) the corner post 15, the end; plate 16 and/or the end sill lr' and the outer wall 78 of the continuous corrugation is extended to form a flange 18-1920 which is secured to the adjacent frame inember'so as to reinforce it. The outer walls may be extended as at 21 to join adjacent corrue gated plates together. The horizontal per tions of the surrounding corrugation furnish an excellent place for the nailing strip'22 for the vertical lining boards 23.

Figs. 10-17 inclusive show aconstruction wherein the outer walls 7 8 of the surrounding corrugation are extended to form flanges 182l-25 which are secured to the longitudinal frame members (sideplate 26,

side sills 27 and/or center sills 28) of the The saving of theseparts walls 5-6 extend continuously and uninterruptedly on four sides of the wall (even though the end is made of two united plates). The corrugations are shallower where they merge into the continuous corrugation than elsewhere.

Figs. 18-20 inclusive are enlarged cross sections showing in detail the various associated parts of the construction illustrated by Figs. 10-17 inclusive. The usual parts of the car are shown, such as side sheathing 50, side lining 51, side lining nailing strip 52, ridge pole 58, roofing boards '54, and fascia 55,'flooring 56 and striking casting 57.

While I have shown and described the corrugations positioned horizontally, it is understood that the corrugations may extend vertically or otherwise, and still come within the scope of the invention, and, furthermore,

while I have described and claimed the wall made of a plate, it is understood that it may be made of one or more united plates and still come within the scope of the invention.

I claim:

l. A.metallic plate'pressed to form a continuous corrugation surrounding a panel, said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation.

2. A metallic plate pressed to form a continuous corrugation surrounding a panel, said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation, said transverse corrugations being of less depth than the continuous corrugation Where they merge into it.

3. A metallic plate pressed to form a continuous corrrugation surounding a panel, said panel formed with transverse corrugations which merge into the opposite por-' tions of the continuous corrugation, said transverse corrugations being of less depth than the continuous corrugation where they merge into it but of greater depth adjacent their middle.

4:. A metallic plate pressed to form a continuous corrugation adjacent its perimeter surrounding a panel, said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation, said transverse corrugations being of less depth than the continuous corrugation where they merge into it.

5. A metallic plate pressed to tinuous corrugation surrounding a panel, said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation and are of less depth than the continuous cor'rugation where they merge into it, the outer wall of said continuous corrugation extended to form a flange.

6. A metallicplate pressed to'form a conform a con- 1 tinuous corrugation surrounding a panel,

said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation and are of less depth than the continuous corrugation where they merge into it, the outer wall of said continuous corrugation extended to form a flange, portions of which are perpendicular to the plane of the plate.

8. A metallic plate pressed to form a continuous corrugation surrounding a panel, said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation, said transverse corrugations merging together to form a lesser number. of corrugations adjacent the middle of the plate.

9/ A metallic plate pressed to form a continuous corrugation surrounding a panel, said panel formed with transverse corrugations which merge into the opposite portions of the continuous corrugation, and are of less depth than the continuous corrugation where they merge into it, said transverse corrugations merging togetherto form a lesser number of deeper corrugations adja-' centthe middle of the plate.

10. A metallic plate pressed to form 'a continuous corrugation surrounding a panel,

said panel formed with transversecorrugations which merge into the opposite portions of the continuous corrugation, said transverse corrugations merging together to form a lesser. number of deeper. corrugations adjacent the middle of the plate,the length of the center line of themetal of the shallower transverse corrugations being substantially the same as the length of the center line of the metal of the deeper transverse corrugations.

11. A metallic plate pressed to form a continuous corrugation surrounding a panel,

said panel formed with transverse corrugations which merge into'thelopposite portions of the continuous corrugation .and are of less depth than the continuous corrugation where they merge into it, said transverse corrugations merging together to form a lesser. number of deeper corrugations adjacent the middle of the plate, the length of the center line ,of the metal of the shallower transverse corrugations being substantiallyv the same as the length of the center line of the metal of the deeper transverse corrugations. 7

' GARTH G. GILPIN. 

